12 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... C6 Dorsal Thumb Wrist ... Flexion None T1 Ulnar ... #differential #diagnosis ... #Neurology #Spine
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Dermatomes and Myotomes ... Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... , T1 (median) Reflexes ... #diagnosis #neurology
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Mytomes - Segmental ... Radial Nerve Wrist ... Fingers Abduction T1 Ulnar ... #Orthopedics #Neurology ... #Diagnosis
Causes of Pediatric Constipation - Differential Diagnosis Algorithm
Dietary / Functional:
 • Insufficient Volume / Bulk
Neurologic:
 •
Causes of Pediatric ... - Differential Diagnosis ... Algorithm Dietary ... Disease • Spinal Cord ... Guillain-Barré Syndrome • Muscular
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Dermatomes and Myotomes ... Reflexes: • ... stopping walking (vascular ... Extremity #Dermatomes #Myotomes ... #diagnosis #neurology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Acute Spinal Cord ... injury, often from vascular ... bladder and rectal reflex ... Injury #Syndromes #diagnosis ... #orthopedics #neurology
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
- Differential Diagnosis ... Algorithm Decreased ... hydronephrosis on U/S) • Reflux ... Nephronophthisis Vascular ... KidneyDisease #Nephrology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... Vascular/Blockage ... dysfunction • Abnormal reflexes ... #neurology #differential ... #algorithm
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Differential Diagnosis ... : • Spinal cord ... spondylitis • Tethered cord ... #differential #diagnosis ... #causes #neurology
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
- Differential Diagnosis ... Algorithm Central ... Strength, Normal Reflexes ... • Spinal Muscular ... #Peds #Pediatrics